jQuery 1.9.1, HTML, CSS, JavaScript
draw full camera stream video to canvas
Amplifies audio, coming from microphone of user. Using Web Audio API
Example of how to implement a HTML5 video as a background in an element. Includes JS to resize Element proportionately. Uses modernizr to provide image fallback for touch devices and browsers that do not support video. Example built with Bootstrap.
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No-Library (pure JS), HTML, CSS, JavaScript